Homedics 5-in-1 TotalClean True HEPA Filtration Air Purifier [Large] With a 360° True HEPA filtration that removes 99.97 percent of airborne bacteria and allergens, the HoMedics 5 in 1 TotalClean Air Purifier helps you and your family breathe easier at home. True HEPA Filtration Carbon Odour Filtration 4.8 Air Changes per Hour Oil Tray with 3 Essential Oil Pads Nightlight – display light turns off when in night mode Replace Filter Indicators